1. Ralph Santitoro Carrier Ethernet Market Development Ralph.Santitoro@us.Fujitsu.com November 2, 2010 Carrier Ethernet-Based Converged Services Infrastructure: Technology Options

2. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 Contents Ethernet Service Delivery Technology Evolution Improving Network Bandwidth Efficiency Convergence Technology Considerations Connection-Oriented Ethernet: A No-Nonsense Overview 2© Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved.

3. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 © Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved. Ethernet Service Delivery Technology Evolution Transport Technology Evolution: SONET to OTN Connection Oriented Ethernet (COE) Different Approaches to COE

4. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 Transport Technology Evolution Container size compatibility with Ethernet port speeds SONET (1.5Mbps to 10Gbps) Container Granularity 1.5Mbps (LO – VT1.5) 50Mbps (HO – STS) Ethernet Fit 10MbE  (OC-3) 100MbE  (OC-3) 1GbE  (OC-48) 10GbE** (OC-192) 100GbE - N/A OTN (1Gbps to 100+Gbps) Container Granularity 1.25Gbps (ODU0) 2.5Gbps (ODU1) 10Gbps (ODU2) 40Gbps (ODU3) 100Gbps (ODU4) Ethernet Fit 10MbE - N/A 100MbE - N/A 1GbE  (~1/2 OTU1) 10GbE (OTU2e) 100GbE (OTU4) 4© Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved.

5. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 Connection-Oriented Ethernet Ideal convergence technology for: Mobile/Cell Tower Backhaul High Performance Business Ethernet Services Why ? Guaranteed CIR CIR bandwidth reserved per EVC, OVC or CoS CIR-based services unaffected by oversubscribed (EIR) services Consistent QoS Performance EVC or OVC traverses pre-determined working or protect path Paths engineered to meet service packet latency & loss requirements High Security COE uses few protocols The more protocols, the more security vulnerabilities 5© Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved. COE provides the Flexibility and Scalability of Ethernet with the Performance, Reliability and Security of SONET

6. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 Different approaches to COE Technology selection depends on the problem you’re trying to solve 6 MPLS-centric COE Static PW T-MPLS Eth MPLS LSP PW Ethernet MPLS Pseudowire (PW) MPLS Label Switched Path (LSP) Ethernet Eth VLAN Tag Switching PBT Ethernet-centric COE BMAC/BVID or C/SVID PBB-TE MPLS-TP Optimized for Multi-Service Transport Three OAM Layers Less optimal for Ethernet service delivery and transport Standards Under Development New standards being developed Augmenting MPLS standards Optimized for Ethernet Service Delivery and Transport One OAM Layer Less optimal for multi-service transport Standardized Now Reuses existing Carrier Ethernet standards, e.g., Service OAM Ethernet Tag Switching Connection-Oriented Ethernet: A No-Nonsense Overview © Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved. Ethernet-centric COE optimized for Ethernet/IP Service Transport MPLS-centric COE optimized for Multi-service Transport

7. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 © Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved. Improving Network Bandwidth Efficiency with COE COE over SONET COE over OTN

8. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 Improving Network Bandwidth Efficiency - COE over SONET Ethernet over SONET (EoS) Challenges 1.EoS doesn’t support aggregation EoS is a port-based service Ethernet switch added for aggregation 2.EoS service bandwidth dictated by SONET EoS bandwidth in 50Mbps STS increments Other EVC/OVC rates waste SONET bandwidth COE over SONET Supports service aggregation Aggregates EVCs/OVCs to best match SONET VCG size Can achieve 100% bandwidth utilization Also supports oversubscribed EIR bandwidth SONET MSPP Eth MSPP Eth MSPP PERouter COE over SONET PERouter P-ONP Eth P-ONP Eth P-ONP 50Mbps 50Mbps SONET VCG 30Mbps wasted 20Mbps EVC 10Mbps EVC 8© Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved. More BW Efficiency = More Service Revenue and Higher Margins 20Mbps EVC

9. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 Improving Network Bandwidth Efficiency - COE over OTN Ethernet over OTN Challenges OTN isn’t efficient under 1Gbps Smallest container size is ODU0 (1.25Gbps) Most popular Ethernet services are < 1Gbps OTN doesn’t support bandwidth oversubscription A Layer 1 service doesn’t provide statistical multiplexing COE over OTN COE aggregates EVCs/OVCs Significantly improved bandwidth utilization for Ethernet services < 1Gbps Also supports oversubscribed EIR bandwidth 1.25GbpsODU0 1.25GbpsODU0 1GbE 9© Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved. COE + OTN = A very bandwidth efficient solution 500Mbps EVC 2x50Mbps EVC 4x100Mbps EVC 1GbE ~800Mbps wasted 200Mbps EVC

10. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 Convergence Technology Considerations for Ethernet Services Cost of 10G/40G/100G NNI to Core Network Does an OTN port cost less than an Ethernet port? Ethernet Service Fault Management How do you propagate faults across technologies ? Type of Services being delivered Port-based EPL (like a Layer 1 private line) or EP-LAN VLAN-aware EVPL or EVP-LAN services with service multiplexing Ethernet Access to IP services 10© Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved. Metro Access Metro Aggregation Core / LH Network COE (up to 10GbE)COE (10/100GbE)MPLS (10/100GbE NNI) COE (up to 10GbE)COE (10/100GbE)OTN (OTU3/4 NNI) OTN (OTU1/2)OTN (OTU2/3/4)OTN (OTU3/4 NNI) COE (up to 10GbE)MPLS (10/100GbE)OTN (OTU3/4 NNI) EPLEPL EVPLEVPL ELANELAN XXX XX XXX X

11. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 Summary COE significantly increases BW efficiency over legacy SONET and NG OTN transport networks Good choice for Access and Aggregation Networks OTN useful for high bandwidth EPL services Ethernet port speeds better match OTN container sizes Better bandwidth utilization than EoS EPL services Many considerations in technology selection 10G/40G/100G port costs for NNI handoff to core network Fault propagation capabilities Types of services to be delivered 11© Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved.

12. Carrier Ethernet-Based Converged Services Infrastructure: Nov. 2, 2010 12© Copyright 2010 Fujitsu Network Communications, Inc. All rights reserved.